Update app.py

app.py

@@ -37,11 +37,20 @@ def submit_file(event):
         return
 
     try:
+        # Extract filename
+        filename = file_input.filename
         submission_path = os.path.join(temp_dir, filename)
+
+        # Save uploaded content to temp file
+        with open(submission_path, "wb") as f:
+            f.write(file_input.value)
+
+        # Upload to Google Drive
         drive_file_id = upload_to_drive(submission_path, filename)
         status.object = f"✅ Uploaded to Google Drive [File ID: {drive_file_id}]"
     except Exception as e:
         status.object = f"❌ Failed to upload to Google Drive: {e}"
+        return  # Exit early on failure
 
     # Update leaderboard
     try: